Crab Umbra

Legality

Format Legality
Pre-release Legal
Noble Legal
Leviathan Legal
Tiny Leaders Legal
Magic Duels Legal
Vintage Legal
Modern Legal
Penny Dreadful Legal
Casual Legal
Vanguard Legal
Legacy Legal
Archenemy Legal
Planechase Legal
1v1 Commander Legal
Duel Commander Legal
Unformat Legal
Pauper Legal
Commander / EDH Legal

Printings View all

Set Rarity
Rise of the Eldrazi (ROE) Uncommon

Combos Browse all

Crab Umbra

Enchantment — Aura

Enchant creature

2,U: Untap enchanted creature.

Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

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Crab Umbra Discussion

Funkydiscogod on Noble deathtouch, no combat

1 week ago

What about Crab Umbra for your uncommon? It protects the creatures while you get set up, and gives you extra firepower once everything is happening.

Also, I'd vote to replace those Augury Owls with Ophidian Eye, or Helm of the Ghastlord.

greatdevourer on Mega Shark vs. Giant Octopus

2 weeks ago

I suppose it would really depend on where you want to take the deck. Are you looking for a more combo oriented deck? More aggro? Something in between? How important is the theme? What kind of budget are you looking at to expand the deck? I'm goiung to assume that you really want to keep the budget low so I'm going to keep my recommendations cheap. I will mention a few cards that cost a bit more, but I'll point those out.

Here are some ideas to consider. The following cards are kinda weak or disrupt your own game plan. You should consider swapping them out.
Deep Spawn and Tolarian Serpent would be good cards for running in a deck where you are self milling in order to fill the graveyard for reanimation effects or a Laboratory Maniac. But I don't think that is the strategy that you are going for. I do see the interactions with Back from the Brink but it seems pretty weak to me.
Denizen of the Deep is a good fattie. But it wipes your board and leaves your opponents with all of their threats. If you are using it to reset ETB triggers, there are better ways.
Homarid Shaman only targets green creatures. This could be a meta choice, but there are so many better things to run.
Island Fish Jasconius is another decent fattie, but the investment of three mana each turn becomes a problem when you need that mana for other spells.
Leviathan would work for me if it did NOT have the requirment of sacrificing two lands for each attack. Without the ability to return Islands form the graveyard to the battlefield, this just eats your mana base.
Marjhan can eat a creature 'borrowed' with Seasinger's ability. Without the Seasinger then you have to use the Crab Umbra to untap it. I do like the shoot attacking creature ability. Adding deathtouch via Gorgon Flail could kill several attackers each turn.
Polar Kraken really needs to go. That cumulative upkeep is just TOO much.
Thing from the Deep is another creature that just eats your mana base and doesn't provide enough benefit for the self induced land destruction.
Sunken City is a great card as long as nobody else is playing blue. The card does not say "you control" so it helps your opponents creatures too.
Vanishing is kinda cute. But keep in mind that phasing does NOT trigger enter the battlefield abilities. There are better choices.
High Tide is a great card in competitive Legacy decks where you combo off and kill in a single turn. As a one-shot effect, not very good for commander games.

Scent of Brine requires you to show everyone what cards you have. I think a simple Cancel would be better.

If you have the budget for it consider the following cards:
Freed from the Real and Pemmin's Aura would act as additional copies of Crab Umbra.
Phyrexian Vault would work well with the Seasinger to eat other peoples creatures and give you some card draw. There are other artifacts, enchantments, and some lands that can sacrifice creatures. Altar of Dementia is a great sacrifice outlet but it is $2-$3.
Tidal Flats would give your attackers first strike unless your opponents tap mana for each attacker.
Minion Reflector could be a lot of fun.
Tromokratis, Shrouded Serpent, Lorthos, the Tidemaker, and Ring of Evos Isle are cards I use in my deck that work fairly well.
Consider adding a Learn from the Past, Psychic Spiral, or Reminisce into you deck to get cards back and add some resilency.


Let me know what you think. As always, temper these recommendations with your collection and your budget.

kamarupa on Ideal inspiration hod

2 months ago

I like the untap business going here. Consider Kiora's Follower, Freed from the Real, Fatestitcher, Drift of Phantasms, Crab Umbra. Maybe take a look at my deck Taptics for some other ideas.

SpaghettiToastBook on Graveyard Moonshine

6 months ago

You can try putting in Sphinx's Tutelage and lots of wheel effects: Dark Deal, Jace's Archivist, Windfall, Teferi's Puzzle Box. Notion Thief is a great card, and it'll be magnificent with Sphinx's Tutelage and a wheel.

Since you're filling up your opponents' graveyards, you might want to play Leyline of the Void or Planar Void to hose graveyard strategies. You can also use the Helm of Obedience + Leyline of the Void combo.

If you're using Phenax, Freed from the Real and Pemmin's Aura are excellent. Second Wind and Crab Umbra might be good too.

I recommend running any of the with useful CMCs -- especially 2 (for Mindcrank and Duskmantle Guildmage) and 3 (for Sphinx's Tutelage, if you put it in).

Pal00ka on Janky Halloween Candy

6 months ago

This sounds like a typical Nekusar deck. I ran him for a while so here's my 2c:

Group hug isn't really that good w him. Especially when you run little/no protection. You're giving card advantage for 1 damage which tends to not end well.

Focusing on wheeling effects like Reforge the Soul, Winds of Change, Windfall, etc. are best since you make opponents' discard their card advantage. Chaining them together makes it even better. Copy spells like Reverberate, Reiterate, Twincast, etc. are fun.

Creatures like Blistergrub have 0 impact. What's 2 damage when we start w 40? If you run more wheels creatures like Young Pyromancer, Talrand, Sky Summoner, Docent of Perfection  Flip, etc. give a chump body for doing what you already planned to do.

You need ramp like whoa. Cut some lands and add cards like Commander's Sphere, Darksteel Ingot, appropriate signets, etc. to get ahead/fix your mana so you can cast Nekusar earlier or recast him when killed.

Protection would be wise too since people will get annoyed being pinged every turn and the easiest way for it to stop is to kill you. Propaganda, chump army as already highlighted, and Meekstone help. Also Crab Umbra, Eel Umbra, Drake Umbra, Swiftfoot Boots, etc. help Nekusar stick around.

Hope something here helps!

KongMing on The Minimal School of ErTaiChi, at Water's Edge

7 months ago

Heya. I've had an Ertai deck for a while, and there are a lot of neat tricks you can use with him to get the most out of counterspells and board lock.

Cards like Freed from the Real, Unbender Tine, Tideforce Elemental, and Crab Umbra can slow opponents down to a crawl ("Sometimes I'm not sure we're even moving that fast," says my wife.)

Bloodghast is great recursion fodder to fuel Ertai's ability. Kjeldoran Outpost can do much the same thing. If you get some more sources of Soldiers, Knight-Captain of Eos can help stall the game out while you wait for your answer. The combination of Ertai, Kjeldoran Outpost, Unbender Tine, and Knight Captain of Eos can buy you at least 3 or 4 turns, all while counterspelling troublesome opponents.

I really recommend Ghostly Prison and Propaganda in order to keep opponents at bay and have an enchantment to autocannibalize if things go south.

Rhystic Study is another enchantment that either slows down opponents or accelerates your draw. Either way, you benefit. Speaking of super trolly enchantments, Telepathy has amazing synergy with Ertai. After all, the only thing better than having a counterspell on legs is knowing exactly where and what all the threats are. Awfully hard for opponents to play mind games with you when you can see their hand.

Grand Arbiter Augustin IV can also really put a damper on opponents, and reduces Ertai's casting cost by 2! Not bad at all.

One final recommendation is Sphinx of the Steel Wind. That card has saved my bacon countless times, I consider it the Esper Baneslayer.

Good luck VietMoneys! Let me know how you like Ertai as your commander.

KongMing on

7 months ago

Heya. I've had an Ertai deck for a while, and there are a lot of neat tricks you can use with him to get the most out of counterspells and board lock.

Cards like Freed from the Real, Unbender Tine, Tideforce Elemental, and Crab Umbra can slow opponents down to a crawl ("Sometimes I'm not sure we're even moving that fast," says my wife.)

Reassembling Skeleton and Bloodghast are great recursion fodder to fuel Ertai's ability. Kjeldoran Outpost can do much the same thing. If you get some more sources of Soldiers, Knight-Captain of Eos can help stall the game out while you wait for your answer. The combination of Ertai, Kjeldoran Outpost, Unbender Tine, and Knight Captain of Eos can buy you at least 3 or 4 turns, all while counterspelling troublesome opponents.

You already have a Ghostly Prison; I would recommend packing a Propaganda alongside it.

Rhystic Study is another enchantment that either slows down opponents or accelerates your draw. Either way, you benefit. Speaking of super trolly enchantments, Telepathy has amazing synergy with Ertai. After all, the only thing better than having a counterspell on legs is knowing exactly where and what all the threats are. Awfully hard for opponents to play mind games with you when you can see their hand.

Grand Arbiter Augustin IV can also really put a damper on opponents, and reduces Ertai's casting cost by 2! Not bad at all.

One final recommendation is Sphinx of the Steel Wind. That card has saved my bacon countless times, I consider it the Esper Baneslayer.

Good luck bowdika! Let me know how you like Ertai as your commander.

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